York YHAU-CW, Руководство пользователя

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JOHNSON CONTROLS
27
SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLY
FORM 155.31-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
3
STRUCTURAL SUPPORT AND INSTALLATION
Structural support of the unit must be provided as in-
dicated for maximum efficiency. Maintain adequate
maintenance space around the chiller so work can be
safely performed. To ensure there is adequate clearance
for tube removal, the maintenance space at the end of
the unit should equal 1.25 x the length of the unit.
Foundation bolts should be installed in level concrete
to secure the unit and prevent shifting in the event of
an earthquake. Rubber vibration isolator pads must be
fit to the machine base before installation as shown on
Figure 9 on page 29. The tolerance for leveling is 1
inch in 1,000 inches or 1 mm in 1,000 mm according to
the bottom edge of the tube plate.
Waterproof the floor on which the ma -
chine will be installed in case of future
leaks.
Dimensions can be found in Table 2 on page 33 . For
the external dimensions of the machine and founda-
tion, see the full view of the machine and the founda-
tion drawing.
For serviceability and maintenance, leave a minimum
of 40 inch space on all sides of the chiller. To be sure
there is enough clearance for tube removal, the main-
tenance space at the end of the unit should equal 1.25
times the length of the unit. See
Table 13 on page 46.
INDOOR AND OUTDOOR INSTALLATION
This chiller is designed to be used indoors. Exposure
to the elements can damage the thermal insulation. The
minimum allowable temperature for outdoor installa-
tion is 32 °F, provided that the chiller includes the cold
ambient option. Outdoor installations will be consid-
ered on a case-by-case basis by a Johnson Controls
Service Representative
ELECTRICAL
The electrical work must be performed in accordance
with the wiring diagrams, delivery specifications, and
technical standards for electrical equipment found in
SECTION 4 - TECHNICAL DATA
. Use the specified
cables to complete the wiring, and fasten them to the
according terminals securely. Loose fitting cables can
cause the terminals to heat up, resulting in fire or elec-
trical shock.
The chiller does NOT arrive with a ground
fault (earth leakage) circuit breaker
installed. Be sure to have the customer
install one at the primary side of the unit.
Electrical work must be supervised or completed by a
Johnson Controls Service Representative.
PRECAUTIONS FOR USE
A caution label for a rotating object is pasted around
the belt cover of the vacuum pump. When replacing
the oil in the vacuum pump, belt, or performing main-
tenance work, stop the chiller. Be sure to turn off the
main circuit breaker (MCB1) and lockout or tagout the
unit. If this is not done, the vacuum pump could start
abruptly and cause injury or damage to the unit.
Do not place anything heavy on the machine or its con-
trol panel. It may fall and injure someone.
Do not climb up the machine without safety harness-
ing.
Contact your local Johnson Controls service office for
inspection and maintenance of the machine. Improper
inspection and maintenance can not only cause a ma-
chine problem but also injure workers.
Keep the chilled water, cooling water, and steam under
the maximum usage pressure. If they exceed the maxi-
mum usage pressure, they may spout or leak. That, in
turn, may cause an electric shock and a burn.
Do not change the set values of the safety devices and
protective devices. Operation with incorrect values can
cause a unit malfunction.
The shut off valve for the pressure release valve must
remain open except during servicing. The unit must
never be operated with this shut off valve closed.
A caution label for high temperature is pasted at the
control panel, solution pump, and vacuum pump. Be
sure not to touch the pump during pump operation. It
may cause a burn.
Wear protective gloves and goggles when operating
the control valve, or other potentially hazardous parts
of the chiller.